Kinetics and mechanism of the hydrolytic disproportionation of iodine
Kinetics and mechanism of the hydrolytic disproportionation of iodine
复制标题
碘水解歧化反应动力学及机理
DOI：
10.1002/kin.20033
复制
发表时间：
2004
影响因子：
1.5
通讯作者：
T. Körtvélyesi
中科院分区：
文献类型：
--
作者：
K. Sebők;T. Körtvélyesi
碘的水解结晶动力学
的紫外-可见分光光度法研究在298 K和离子强度0.2 M（NaClO 4）在缓冲溶液中的pH值范围8.91-10.50在不同的初始碘化物浓度。该反应的表征对于模拟碘作为反应物或中间体以及饮用水处理存在下的振荡和前沿反应是基本的。矩阵秩分析证实了三个吸收物种在反应的开始，而后来的假设两个物种是足够的描述在光谱的可见光部分的实验数据。用ZiTa多功能程序包进行拟合/模拟，对79条实验曲线的17，906个点同时进行评价，提出了反应机理。建议的参数集，这是通过绝对，相对和正交拟合的实验数据。© 2004 Wiley Periodicals，Inc. Int J Chem Kinet 36：596-602，2004
Kinetics of the hydrolytic disproportionation of I2
was studied by UV–VIS spectrophotometry at 298 K and at the ionic strength 0.2 M (NaClO4) in buffered solutions in the pH range 8.91–10.50 at different initial iodide concentrations. The characterization of this reaction is fundamental for modeling oscillatory and front reactions in the presence of iodine as reactant or intermediate as well as for drinking water treatment. A matrix rank analysis confirmed three absorbing species in the beginning of the reaction, whereas later assumption of two species is enough to describe the experimental data in the visible part of the spectrum. A reaction mechanism was proposed for disproportionation by using fitting/simulation with a multipurpose program package ZiTa, by simultaneous evaluation of 17,906 points in 79 experimental curves. A parameter set was suggested, which was obtained by absolute, relative, and orthogonal fittings of the experimental data. © 2004 Wiley Periodicals, Inc. Int J Chem Kinet 36: 596–602, 2004